1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/include/md/_darwin.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,303 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nspr_darwin_defs_h___
1.10 +#define nspr_darwin_defs_h___
1.11 +
1.12 +#include "prthread.h"
1.13 +
1.14 +#include <libkern/OSAtomic.h>
1.15 +#include <sys/syscall.h>
1.16 +
1.17 +#ifdef __APPLE__
1.18 +#include <AvailabilityMacros.h>
1.19 +#include <TargetConditionals.h>
1.20 +#endif
1.21 +
1.22 +#define PR_LINKER_ARCH "darwin"
1.23 +#define _PR_SI_SYSNAME "DARWIN"
1.24 +#ifdef __i386__
1.25 +#define _PR_SI_ARCHITECTURE "x86"
1.26 +#elif defined(__x86_64__)
1.27 +#define _PR_SI_ARCHITECTURE "x86-64"
1.28 +#elif defined(__ppc__)
1.29 +#define _PR_SI_ARCHITECTURE "ppc"
1.30 +#elif defined(__arm__)
1.31 +#define _PR_SI_ARCHITECTURE "arm"
1.32 +#elif defined(__aarch64__)
1.33 +#define _PR_SI_ARCHITECTURE "aarch64"
1.34 +#else
1.35 +#error "Unknown CPU architecture"
1.36 +#endif
1.37 +#define PR_DLL_SUFFIX ".dylib"
1.38 +
1.39 +#define _PR_VMBASE 0x30000000
1.40 +#define _PR_STACK_VMBASE 0x50000000
1.41 +#define _MD_DEFAULT_STACK_SIZE 65536L
1.42 +#define _MD_MMAP_FLAGS MAP_PRIVATE
1.43 +
1.44 +#undef HAVE_STACK_GROWING_UP
1.45 +#define HAVE_DLL
1.46 +#if defined(__x86_64__) || TARGET_OS_IPHONE
1.47 +#define USE_DLFCN
1.48 +#else
1.49 +#define USE_MACH_DYLD
1.50 +#endif
1.51 +#define _PR_HAVE_SOCKADDR_LEN
1.52 +#define _PR_STAT_HAS_ST_ATIMESPEC
1.53 +#define _PR_HAVE_LARGE_OFF_T
1.54 +#define _PR_HAVE_SYSV_SEMAPHORES
1.55 +#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
1.56 +
1.57 +#define _PR_INET6
1.58 +/*
1.59 + * I'd prefer to use getipnodebyname and getipnodebyaddr but the
1.60 + * getipnodebyname(3) man page on Mac OS X 10.2 says they are not
1.61 + * thread-safe. AI_V4MAPPED|AI_ADDRCONFIG doesn't work either.
1.62 + */
1.63 +#define _PR_HAVE_GETHOSTBYNAME2
1.64 +#define _PR_HAVE_GETADDRINFO
1.65 +/*
1.66 + * On Mac OS X 10.2, gethostbyaddr fails with h_errno=NO_RECOVERY
1.67 + * if you pass an IPv4-mapped IPv6 address to it.
1.68 + */
1.69 +#define _PR_GHBA_DISALLOW_V4MAPPED
1.70 +#ifdef __APPLE__
1.71 +#if !defined(MAC_OS_X_VERSION_10_3) || \
1.72 + MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_3
1.73 +/*
1.74 + * socket(AF_INET6) fails with EPROTONOSUPPORT on Mac OS X 10.1.
1.75 + * IPv6 under OS X 10.2 and below is not complete (see bug 222031).
1.76 + */
1.77 +#define _PR_INET6_PROBE
1.78 +#endif /* DT < 10.3 */
1.79 +#if defined(MAC_OS_X_VERSION_10_2) && \
1.80 + MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_2
1.81 +/* Mac OS X 10.2 has inet_ntop and inet_pton. */
1.82 +#define _PR_HAVE_INET_NTOP
1.83 +#endif /* DT >= 10.2 */
1.84 +#endif /* __APPLE__ */
1.85 +#define _PR_IPV6_V6ONLY_PROBE
1.86 +/* The IPV6_V6ONLY socket option is not defined on Mac OS X 10.1. */
1.87 +#ifndef IPV6_V6ONLY
1.88 +#define IPV6_V6ONLY 27
1.89 +#endif
1.90 +
1.91 +#ifdef __ppc__
1.92 +#define _PR_HAVE_ATOMIC_OPS
1.93 +#define _MD_INIT_ATOMIC()
1.94 +extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val);
1.95 +#define _MD_ATOMIC_INCREMENT(val) _PR_DarwinPPC_AtomicIncrement(val)
1.96 +extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val);
1.97 +#define _MD_ATOMIC_DECREMENT(val) _PR_DarwinPPC_AtomicDecrement(val)
1.98 +extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval);
1.99 +#define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval)
1.100 +extern PRInt32 _PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.101 +#define _MD_ATOMIC_ADD(ptr, val) _PR_DarwinPPC_AtomicAdd(ptr, val)
1.102 +#endif /* __ppc__ */
1.103 +
1.104 +#ifdef __i386__
1.105 +#define _PR_HAVE_ATOMIC_OPS
1.106 +#define _MD_INIT_ATOMIC()
1.107 +extern PRInt32 _PR_Darwin_x86_AtomicIncrement(PRInt32 *val);
1.108 +#define _MD_ATOMIC_INCREMENT(val) _PR_Darwin_x86_AtomicIncrement(val)
1.109 +extern PRInt32 _PR_Darwin_x86_AtomicDecrement(PRInt32 *val);
1.110 +#define _MD_ATOMIC_DECREMENT(val) _PR_Darwin_x86_AtomicDecrement(val)
1.111 +extern PRInt32 _PR_Darwin_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
1.112 +#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_AtomicSet(val, newval)
1.113 +extern PRInt32 _PR_Darwin_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.114 +#define _MD_ATOMIC_ADD(ptr, val) _PR_Darwin_x86_AtomicAdd(ptr, val)
1.115 +#endif /* __i386__ */
1.116 +
1.117 +#ifdef __x86_64__
1.118 +#define _PR_HAVE_ATOMIC_OPS
1.119 +#define _MD_INIT_ATOMIC()
1.120 +extern PRInt32 _PR_Darwin_x86_64_AtomicIncrement(PRInt32 *val);
1.121 +#define _MD_ATOMIC_INCREMENT(val) _PR_Darwin_x86_64_AtomicIncrement(val)
1.122 +extern PRInt32 _PR_Darwin_x86_64_AtomicDecrement(PRInt32 *val);
1.123 +#define _MD_ATOMIC_DECREMENT(val) _PR_Darwin_x86_64_AtomicDecrement(val)
1.124 +extern PRInt32 _PR_Darwin_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
1.125 +#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_64_AtomicSet(val, newval)
1.126 +extern PRInt32 _PR_Darwin_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
1.127 +#define _MD_ATOMIC_ADD(ptr, val) _PR_Darwin_x86_64_AtomicAdd(ptr, val)
1.128 +#endif /* __x86_64__ */
1.129 +
1.130 +#if defined(__arm__) || defined(__aarch64__)
1.131 +#define _PR_HAVE_ATOMIC_OPS
1.132 +#define _MD_INIT_ATOMIC()
1.133 +#define _MD_ATOMIC_INCREMENT(val) OSAtomicIncrement32(val)
1.134 +#define _MD_ATOMIC_DECREMENT(val) OSAtomicDecrement32(val)
1.135 +static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval)
1.136 +{
1.137 + PRInt32 oldval;
1.138 + do {
1.139 + oldval = *val;
1.140 + } while (!OSAtomicCompareAndSwap32(oldval, newval, val));
1.141 + return oldval;
1.142 +}
1.143 +#define _MD_ATOMIC_ADD(ptr, val) OSAtomicAdd32(val, ptr)
1.144 +#endif /* __arm__ || __aarch64__ */
1.145 +
1.146 +#define USE_SETJMP
1.147 +
1.148 +#if !defined(_PR_PTHREADS)
1.149 +
1.150 +#include <setjmp.h>
1.151 +
1.152 +#define PR_CONTEXT_TYPE jmp_buf
1.153 +
1.154 +#define CONTEXT(_th) ((_th)->md.context)
1.155 +#define _MD_GET_SP(_th) (((struct sigcontext *) (_th)->md.context)->sc_onstack)
1.156 +#define PR_NUM_GCREGS _JBLEN
1.157 +
1.158 +/*
1.159 +** Initialize a thread context to run "_main()" when started
1.160 +*/
1.161 +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
1.162 +{ \
1.163 + *status = PR_TRUE; \
1.164 + if (setjmp(CONTEXT(_thread))) { \
1.165 + _main(); \
1.166 + } \
1.167 + _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
1.168 +}
1.169 +
1.170 +#define _MD_SWITCH_CONTEXT(_thread) \
1.171 + if (!setjmp(CONTEXT(_thread))) { \
1.172 + (_thread)->md.errcode = errno; \
1.173 + _PR_Schedule(); \
1.174 + }
1.175 +
1.176 +/*
1.177 +** Restore a thread context, saved by _MD_SWITCH_CONTEXT
1.178 +*/
1.179 +#define _MD_RESTORE_CONTEXT(_thread) \
1.180 +{ \
1.181 + errno = (_thread)->md.errcode; \
1.182 + _MD_SET_CURRENT_THREAD(_thread); \
1.183 + longjmp(CONTEXT(_thread), 1); \
1.184 +}
1.185 +
1.186 +/* Machine-dependent (MD) data structures */
1.187 +
1.188 +struct _MDThread {
1.189 + PR_CONTEXT_TYPE context;
1.190 + int id;
1.191 + int errcode;
1.192 +};
1.193 +
1.194 +struct _MDThreadStack {
1.195 + PRInt8 notused;
1.196 +};
1.197 +
1.198 +struct _MDLock {
1.199 + PRInt8 notused;
1.200 +};
1.201 +
1.202 +struct _MDSemaphore {
1.203 + PRInt8 notused;
1.204 +};
1.205 +
1.206 +struct _MDCVar {
1.207 + PRInt8 notused;
1.208 +};
1.209 +
1.210 +struct _MDSegment {
1.211 + PRInt8 notused;
1.212 +};
1.213 +
1.214 +/*
1.215 + * md-specific cpu structure field
1.216 + */
1.217 +#define _PR_MD_MAX_OSFD FD_SETSIZE
1.218 +
1.219 +struct _MDCPU_Unix {
1.220 + PRCList ioQ;
1.221 + PRUint32 ioq_timeout;
1.222 + PRInt32 ioq_max_osfd;
1.223 + PRInt32 ioq_osfd_cnt;
1.224 +#ifndef _PR_USE_POLL
1.225 + fd_set fd_read_set, fd_write_set, fd_exception_set;
1.226 + PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
1.227 + fd_exception_cnt[_PR_MD_MAX_OSFD];
1.228 +#else
1.229 + struct pollfd *ioq_pollfds;
1.230 + int ioq_pollfds_size;
1.231 +#endif /* _PR_USE_POLL */
1.232 +};
1.233 +
1.234 +#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
1.235 +#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
1.236 +#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
1.237 +#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
1.238 +#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
1.239 +#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
1.240 +#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
1.241 +#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
1.242 +#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
1.243 +#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
1.244 +#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
1.245 +#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
1.246 +#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
1.247 +
1.248 +#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
1.249 +
1.250 +struct _MDCPU {
1.251 + struct _MDCPU_Unix md_unix;
1.252 +};
1.253 +
1.254 +#define _MD_INIT_LOCKS()
1.255 +#define _MD_NEW_LOCK(lock) PR_SUCCESS
1.256 +#define _MD_FREE_LOCK(lock)
1.257 +#define _MD_LOCK(lock)
1.258 +#define _MD_UNLOCK(lock)
1.259 +#define _MD_INIT_IO()
1.260 +#define _MD_IOQ_LOCK()
1.261 +#define _MD_IOQ_UNLOCK()
1.262 +
1.263 +extern PRStatus _MD_InitializeThread(PRThread *thread);
1.264 +
1.265 +#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
1.266 +#define _MD_INIT_THREAD _MD_InitializeThread
1.267 +#define _MD_EXIT_THREAD(thread)
1.268 +#define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
1.269 +#define _MD_RESUME_THREAD(thread) _MD_resume_thread
1.270 +#define _MD_CLEAN_THREAD(_thread)
1.271 +
1.272 +extern PRStatus _MD_CREATE_THREAD(
1.273 + PRThread *thread,
1.274 + void (*start) (void *),
1.275 + PRThreadPriority priority,
1.276 + PRThreadScope scope,
1.277 + PRThreadState state,
1.278 + PRUint32 stackSize);
1.279 +extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
1.280 +extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
1.281 +extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
1.282 +extern void _MD_YIELD(void);
1.283 +
1.284 +#endif /* ! _PR_PTHREADS */
1.285 +
1.286 +#define _MD_EARLY_INIT _MD_EarlyInit
1.287 +#define _MD_FINAL_INIT _PR_UnixInit
1.288 +#define _MD_INTERVAL_INIT _PR_Mach_IntervalInit
1.289 +#define _MD_GET_INTERVAL _PR_Mach_GetInterval
1.290 +#define _MD_INTERVAL_PER_SEC _PR_Mach_TicksPerSecond
1.291 +
1.292 +extern void _MD_EarlyInit(void);
1.293 +extern void _PR_Mach_IntervalInit(void);
1.294 +extern PRIntervalTime _PR_Mach_GetInterval(void);
1.295 +extern PRIntervalTime _PR_Mach_TicksPerSecond(void);
1.296 +
1.297 +/*
1.298 + * We wrapped the select() call. _MD_SELECT refers to the built-in,
1.299 + * unwrapped version.
1.300 + */
1.301 +#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
1.302 +
1.303 +/* For writev() */
1.304 +#include <sys/uio.h>
1.305 +
1.306 +#endif /* nspr_darwin_defs_h___ */
